Here is a list of all the postings James Alford has made in our forums. Click on a thread name to jump to the thread.
|Thread: Thread sizes on flexispeed meteor lathe|
I have a Flexispeed Meteor lathe (I was working on it this evening, finally getting a vertical slide fitted and working) and a spare cross slide and saddle. Whether they have been re-tapped in one of them, I do not know, but they gib screws are not interchangeable between the spare and the set in the machine. I have no idea what thread either set are, though, I regret.
|Thread: Fibre optic clock|
That looks like a rather nice car. Somewhat more room in which to work than the Seven, I imagine.
A small world. Do you by any chance have any pictures of the car?
I am still around and thank you for your reply. I am sorry to hear of your health problems.
Thank you for the overview of how the clock works which does make general sense. I shall have to read the thread again to refresh my memory as it is a while since I read it.
I still aspire to build some sort of clock, but I am currently building an Austin Seven special, so clock plans are somewhat in the future. I shall save the thread for then, though.
|Thread: Small modeling lathe|
I know that everyone has their own thoughts, but having owned a Peatol (Taig) and now a Flexispeed, I have to confess that I find the Flexiespeed much better, more usable and easier to control than the Peatol. Admittedly, the Peatol was an earlier version, bought in the early 80s.
|Thread: RequiredOutside Diameter to Cut 5/16 BSF Thread|
Thank you for the information. I have turned the shaft down and tapered the end a little to ease the die. The die is now cutting nicely.
Thank you both.
So, showing my utter ignorance: is the outside diameter always the same as thread size eg a 7/16 BSF thread would need a 7/16" shaft?
I am making a stepped stud for the water manifold on an Austin Seven and wish to cut a 5/16 BSF thread on one end. I can find charts showing the size of hole to drill to tap a thread, but nothing for the diameter for studs and bolts. Would it be the same as the tapping diameter or something else?
|Thread: Oxy hydrogen torches|
I used Sifbronze. I used whatever variety was cheapest, to be honest, mostly buying it in 1kg packets from CupAlloy.
If you have a compressor, why not try? I was brazing a very large copper sculpture in the free air, without any firebricks.
I saw these devices, but they were more than I could justify, especially as I had a compressor.
This is the page which set me thinking. https://sites.google.com/site/gypsytinker2012/how-to/make-a-mako
My first attempt worked well, but the flame was rather bushy and lack direction. My second attempt was much more effective. It had a longer, narrower tube and more slots. I experimented a lot with sheet rolled into a tube to slide up and down the base part to try and get the optimum length.
The details below are for the first version which I made. I shall post a picture of the later version if you wish.
I had a disused oxy-acetylene torch and made a new nozzle to fit onto a swan neck. The sketch below gives the main dimensions, none of which seems to be too critical.
I made my torch before I had my lathe working, so everything it rather loose and wonky. I brazed it all together and it works.
I connected the air line from the torch to the hose from a compressor and the gas line to the propane tank. I have blow-back arrestors in both hoses. I use the torch with the compressor and propane set to full.
The settings on the torch controls themselves is quite critical and needs careful setting. However, once the right combination of gas and air is found, the flame is quite compact, extremely hot and very noisy.
This short video shows the torch running. The flame is off-centre, mainly because the whole thing is a little wonky. **LINK**
Edited By James Alford on 23/05/2019 21:26:29
I needed to do a lot of brazing on a large copper structure, but could not justify the cost of oxygen bottles or the gas. I fabricated a compressed air-propane torch which I ran off from a small compressor. It was no doubt less efficient than oxy-propane, but was still more than powerful enough to braze the structure well.
I made the torch using ideas from the web. It took a while to fine tune it, but the cost was negligible.
Edited By James Alford on 23/05/2019 07:18:03
|Thread: New member, Buckinghamshire|
I live in Aylesbury (Buckinghamshire).
|Thread: Unusual Tool|
Thank you for the suggestions. If I see the person who gave it to me again, I shall ask her whether she has any idea what it is. I believe that the tools were her husband's who has, I think, died. Knowing what he did for a living might give a clue.
No. The blade, assuming that it is a blade, is central to the tool and is in one piece.
|"A photo with the knob depressed showing the blade would be helpful.|
The third image down shows the plunger fully depressed. The blade is flush with the bottom of the tool and does not protrude. James.
Edited By James Alford on 02/12/2018 11:37:38
Edited By James Alford on 02/12/2018 11:33:35
I was posting from my phone and could not work out how to add the pictures............ Reverted to the laptop.
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